The answer to 'why is my surge protector power surge' is that the surge protector has likely reached the end of its lifespan and can no longer effectively protect your electronics from power surges. Surge protectors are designed to absorb and dissipate excess electrical energy during a power spike, but over time the internal components can degrade and become less effective.
Common signs that your surge protector needs to be replaced include the power light turning off, the surge protection indicator light no longer illuminating, or the protector no longer providing the expected level of protection. If you notice any of these issues, it's best to replace the surge protector as soon as possible to prevent potential damage to your valuable electronics.